201012225544 has 16 divisors (see below), whose sum is σ = 405890071020. Its totient is φ = 92774873280.

The previous prime is 201012225527. The next prime is 201012225559. The reversal of 201012225544 is 445522210102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 183226802500 + 17785423044 = 428050^2 + 133362^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 966404827 + ... + 966405034.

Almost surely, 2^201012225544 is an apocalyptic number.

It is an amenable number.

201012225544 is an abundant number, since it is smaller than the sum of its proper divisors (204877845476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201012225544 is a wasteful number, since it uses less digits than its factorization.

201012225544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932809880 (or 1932809876 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 201012225544 its reverse (445522210102), we get a palindrome (646534435646).

The spelling of 201012225544 in words is "two hundred one billion, twelve million, two hundred twenty-five thousand, five hundred forty-four".